Home / 19,415.63-26,787.11-15,824.40

Finding the Fourth Proportional to 19,415.63, 26,787.11 and 15,824.40

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Solution

The fourth proportional to 19,415.63, 26,787.11 and 15,824.40 is: 21,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.63 : 26,787.11 = 15,824.40 : x
  2. Step 2: Convert to fraction form
    19,415.63/26,787.11 = 15,824.40/x
  3. Step 3: Cross multiply
    19,415.63x = 26,787.11 × 15,824.40
  4. Step 4: Simplify right side
    19,415.63x = 423,889,864.36
  5. Step 5: Solve for x
    x = 423,889,864.36/19,415.63
  6. Step 6: Final answer
    x = 21,832.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.